package collection;

import java.util.ArrayList;
import java.util.Collection;

public class CollectionOperDemo {
    public static void main(String[] args) {
        Collection c1 = new ArrayList();
        c1.add("java");
        c1.add("c++");
        c1.add(".net");
        System.out.println("c1:"+c1);

        Collection c2 = new ArrayList();
        c2.add("aaa");
        c2.add("bbb");
        c2.add("ccc");
        System.out.println("c2:"+c2);

        c1.addAll(c2);
        System.out.println("c1:"+c1);
        System.out.println("c2:"+c2);

        Collection c3 = new ArrayList();
        c3.add("c++");
        c3.add("java");
        c3.add("php");
        System.out.println("c3:"+c3);

        boolean contains = c1.contains(c3);
        System.out.println("是否包含"+contains);

        /*//取交集:c1中仅保留与c3共有的元素而c3不变
        c1.removeAll(c3);
        System.out.println("c1:"+c1);
        System.out.println("c3:"+c3);*/

        //删交集:将c1中与c3共有的元素删除c3不变
        c1.removeAll(c3);
        System.out.println("c1"+c1);
        System.out.println("c3"+c3);
        for (Object o : c1) {
            System.out.println(c1);
        }











    }
}
